Carbureter.



W. D. QCONNOR.

` CARBUHETER. APPLICAUON FILED MAY 5. 1915.

Patented J ue 13, '1916.v

w 2 SHEETS-SHEET l.

@mitm caws w. D. oooNNoH.

CAHBURETEH. APPLICATION FILED MAY 5. |915.

gl. 'PatentedJune13,1916.

2 SHEETS-SHEET 2.

, CUNHO?? WILLIAM DELOS O CONN 0R,

lli 1@ 0F EVERETT, WASHINGTON'.

CARBURETER.

Specification of Letters Patent.

Application led May 5 1915. Serial No. 26,135.

T 0 all w from t may concern f Be it known that I,`W1LL1AM DELos OCON- Non, a citizen of the United States, residing distillate, kerosene, alcohol, or any other fuel oil that'when combined with air may bel exploded when confined in the combustio chamber of an engine.

A further object of the invention is to provide in 'connection with the heater or main body of the device, means for regulating the supply of air and fuel thereto and so\disposing the air and fuel inlets and the discharge which forms the engine intake, as to obtain a thorough mixing of the air and fuel oil before the same reaches the combustion chamber or chambers of the engine. Vith the above and other objects in view, the invention consists in the novel construetion, combination and arrangement of parts, as herein described, illustrated'and claimed. In the accompanying drawings Figure 1 is a side elevation showing thc apparatus of this invention applied to an internal combustion engine. Fig.2 is a vertical sectional view of the same, illustrating the construe tion of the heater and the fuel chamber, and the relative arrangement of the several parts of the apparatus. Fig. 3 is a cross section on the line 3-3 of Fig. 1 taken about centrally of the heatingr chamber. Fig. 4 is a sectional View on the linel 1 -4 of Fig. 1 taken adjacent to one end of the heater. Fig. 5 is a longitudinal section through e. modified form of heater.

Referring to the vdrawings A exhaust pipe of which is indicated at l and the intake pipe of which is indicated at 2.

In carrying out the present invention and in order to adapt the engine to be operated by fuel oils of different grades, I employ a generator, the main'section of .which consists of a fuel mixture heater designated generally at B and the same comprising an outer and preferably cylindrical or tubular 'shell generallyl designates an internal combustion engine the or container 3, an inlet header 1 at one end thereof and an outlet header 5 at the oppo.

site endthereof and an outlet header 5 at.

the opposite end thereof, the headers 4f and 5 being shown as threaded. upon the opposite ends of the shell 3. The exhaust pipe 1 enters the header 'fl and the exhaust delivered into the shell 3 of the heater'by said exhaust pipe passes through a tube or plurality7 of tubes (3 extending longitudinally of the heater and inclosed by the shell 3,

said tubes (3 beingconnected at their oppo-.

site extremities to 'the head plate 7 within the headers 1 or 5 so that the exhaust gases from the lengine will be forced to pass through the tubes (S from the inlet header f1 to the outlet header and from thence preferably through an extension exhaust pipe 8 to the atmosphere.

9 designates an air inlet pipe one end of which is connected to and 'in communication with the shell- 3, the opposite end of said pipe beingrleft open to admit air drawninto the shell 3 by the suction of the piston or pistons of the engine A. during the intake or suction stroke of the piston or pistons as readily understood by those familiar with the art to which this invention appertains. Associated with the air inlet pipe 9 is a liquid fuel chamber l() into the top of which leads a fuel feed pipe 11 connected thereto by a union 12. The chamber l() is provided with an inlet bore 13 terminating in a valve seat 11 with which cooperates a valve 15 having a stem 16 working through a guide 17 screwed into a tubular boss 18 on the under side of a screw cap or plug 19 which closes the upper end of the chamber 10. Within the chamber 10 .is arranged a fioat 2O which upon rising comes in contact with the stem 16 of the valve 15, forcing the latter upwardly to a 'closed position and therebv shutting olf the further ingress of fuel oil. kThe chamber 10 is provided with ratenteaaune 13,1916.

engine, carries with lit fuel oil in a quantity proportionate Ato the extent to which the valve Q4 is opened. The chamber 10 is shown as provided with a' lateral extension :25 connected directly tol and receiving the air inlet pipe 9. The pipe 11- is branched as shown. the same being illustrated as provided with two branches 26 and :27 leading to compartments 28 and 29 of afuel tank, the feed pipes 28 and 29 being controlled respectively by manually operated valves or stop cocks 3() and A31. By this means, the engine may be started lon' gasolene and after the vaporizer becomes sufficiently heated, the

gasolene may be cut oli' and fuel oil of lower grade may be used in'place thereof. Adjacent to the outlet header 5, the heater is provided with an auxiliary air inlet pipe32 controlledby an automatic auxiliary air inlet valve 33 which is adjustable in the ordinary way for regulating the tension of the valve to admit more or less air in accordance withl climatic changes and other conditions. At a point between the air inlet pipe 9 and the auxiliary air inlet pipe the engine intake., pipe 2 communicates with the interior of theheater through the outer shell 3.

It'will now be understood from the fore- `going description taken in connection with the accompanying drawings, that a constant level of liquid fuel is maintained in the chamber l0 by the operation of the float 2() in conjunction with the inlet valve 15. In starting Vthe engine it is preferable to use oil of a more volatile nature such as gasolene, the chamber 10 being preferably made of such capacity as to hold only enough gasolene to effect the running of the engine for a period of several minutes or until the container B becomes heated to an extent which will cause it to. effectively raise the temperature of kerosene or oil of a lower grade than gasolene.

In operation, the exhaust gases from the engine A are conducted by the exhaust pipe l into the header 4 and thence through tubes resembling a tubular boiler into the outlet' header 5 and thence out through the extension exhaust pipe 8. This highly heats the tubes within the shell 3 and on account of the small size and capacity of thevpipe 9 only a small amount of air is drawn` inwardly through said pipe 9. sufficient to`take up the requisite amount of fuel oil from the discharge passage 2l. of the fuel chamber 10 to feed the engine with the necessary mixture. The remainder of the necessary quantity of air is admitted through the auxiliary air inlet pipe and it will be noted that the point of exit of the air and fuel oil is at an approximately medial point in the length of 'the vaporizer and located between the pipes 9 land Therefore, the combined air and oil drawn in through the pipe 9 meet the auxiliary air delivered by the pipe 3Q at the junction of the engine intake pipe 2 with the heater. Therefore, the oil and air are thoroughly mixed in passing through the intake pipe 2 to the combustion chamber or chambers of the engine. The pipe 2 is shown as equipped with the usual throttle Valve 3i to regulatelthe supply of mixture to the engine.

It will, of course, be understood that the device hereinabove described [may be used in combination with any internal combustion lengine and it will further be understood that the size of' the entireapparatus may be varied to s'uit any engine in connection with which it is used. Therefore, various changes may be made in the form, proportion and minor details of construction of the device heads 7', 2 and 9 designating pipes corre# sponding with the pipes 2 and 9 of the construction illustrated i'n Fig. l. y This is a very simple form of heater and is applicable around the exhaust pipe of the internal combustion engine of a motor vehicle.

lVhat I claim is An attachment for an internal combustion engine, comprising a heater embodying a container shell, head plates adjacent to the ends thereof', inlet and out-letheaders inclosing said head plates and forming exhaust inlet and outlet chambers, exhaust conducting tubes connecting said head plates, a Afuel mixture inlet pipe communicating with said Shell adjacent to one end thereof, a valved auxiliary air linlet communicating with said shell adjacent to the other end thereof, and an engine intake pipe leading from said shell at a point between said mixture inlet pipe and said auxiliary air inlet.

In testimony whereof I aiiixxmy signature in presence of two witnesses:

WILLIAM DELos ocoNNoR.

yWitnesses:

THEODORE ANDERSON, M. J. CI-IRIsTIANsEN. 

